You need to have ffmpeg and ffprobe installed and in your path. Here's the version used by yours truly:
ffmpeg version 4.0-tessus Copyright (c) 2000-2018 the FFmpeg developers
built with Apple LLVM version 9.1.0 (clang-902.0.39.1)
configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-config-flags=--static --disable-ffplay
libavutil 56. 14.100 / 56. 14.100
libavcodec 58. 18.100 / 58. 18.100
libavformat 58. 12.100 / 58. 12.100
libavdevice 58. 3.100 / 58. 3.100
libavfilter 7. 16.100 / 7. 16.100
libswscale 5. 1.100 / 5. 1.100
libswresample 3. 1.100 / 3. 1.100
libpostproc 55. 1.100 / 55. 1.100
Pretty much any version with HLS support should do, be careful to have support for the audio/video codecs you like.
You may need mongodb services started (use brew it's so simple !)
brew services start mongodb
You can use both npm or yarn, the versions I used to create this project are:
node -v; npm -v; yarn -v
v9.3.0
5.5.1
1.3.2
# With npm
npm install
cd client
npm install
cd ..
# With yarn
yarn install
cd client
yarn install
cd ..
# With npm
npm run start-dev
# With yarn
yarn start-dev